Iran. M. Environ. Well being. Sci. Eng., 2010, Volume. 7, Number 2, pp. 299-306
EXPANSION, PHOTOSYNTHESIS AND RESPIRATORY RESPOND TO COPPER IN LEMNA MINIMAL: A POTENTIAL USE OF DUCKWEED IN BIOMONITORING Downloaded from http://journals.tums.ac.ir/ on Thurs night, February twenty-three, 2012 * N. Khellaf, M. Zerdaoui Laboratory of Environmental Anatomist, Faculty of Engineering, Badji Mokhtar School, Annaba, Algeria Received three or more February 2010; revised twenty one Jully 2010; accepted 20 August 2010
Aquatic macrophytes will be known to collect various weighty metals within their biomass. This accumulation is often accompanied by physiological changes which may be used in biomonitoring for marine pollution. In this study, the effect of copper mineral (Cu) for the growth of the duckweed Lemna minor, then its removal, was researched with 0. 1вЂ“1. 0 mg/L of Cu within a quarter CoГЇc and Lesaint solution at pH=6. 1 ) In order to validate duckweed patience to Cu, photosynthesis was measured in the maximal concentration which caused no impact on the plant progress. The benefits showed that copper inhibited Lemna growth at concentrations в‰Ґ 0. 3 mg/L. At 0. 2 mg/L, the final biomass was roughly four times greater than the initial biomass. Examination of metallic concentration in water demonstrated that Lemna minor was responsible for the removal of 26% of Cu through the solution. In the presence of Cu, breathing was lowered, while the natural photosynthesis increased substantially. Net the natural photosynthesis approximately increased three times in comparison to the control. Birdwatcher was accountable for 130-290% increase in the photosynthetic activities. These types of results recommended that Lemna minor may well be a good device for the evaluation of copper polluting of the environment in biomonitoring programs. Key phrases: Aquatic air pollution; Bioindicator; Lemna minor; Physiological modifications; Development; Photosynthesis
Copper (Cu) is a vital element for organisms and it is involved in several physiological procedures (Teisseire and Guy, 2000). However , it can be toxic at higher concentrations by creating deleterious effects to human being, animals and plants (Vinodhini and Narayanan, 2009). Excess of Cu may well reach living organisms because of environmental pollution caused by anthropogenic activities (mining operations, developing industries and agricultural technologies) which can modify the biogeochemical cycles with the metal. Many studies demonstrated that many types of duckweed, a group of free-floating fresh water plants with the family Lemnaceae, are able to *Corresponding author: Email: [email protected] fr Tel/Fax: +213 38 87 60 sixty five
absorb and accumulate large amount of copper within their biomass making an internal focus several fold greater than the nutrient medium (Jain et al., 1989; Zayed ain al., 98; Miretzky ainsi que al., 2005; Ater ainsi que al., 2006). This accumulation has, relatively, a romance with the patience phenomena which is defined as the cell power to protect grow tissues against injury due to the steel (Sabreen and sugiyama, 2008). At metallic concentration higher than the suffered concentration, degree of toxicity symptoms and physiological improvements are induced. Cupric ions are responsible for a lot of alterations of plant skin cells and inhibition of enzymatic activities (Teisseire and Guy, 2000). In addition they cause significant changes in respiration, photosynthetic CO2 fixation and photosynthetic pigments by 299
N. Khellaf et 's., a comparatIVE aNaLytIcaL Study...
Downloaded via http://journals.tums.ac.ir/ upon Thursday, Feb . 23, 2012
increasing oxidation of chloroplast membranes (Prasad et al., 2001; Hattab et approach., 2009). These types of physiological changes, evaluated by simply biotoxicity checks, can be used because an indication of metal pollution and give data in biomonitoring (Movahedian et 's., 2005). Non-active macrophytes because bioindicators have some advantages just like high patience to aquatic metal polluting of the environment, convenience pertaining to sampling, significant individuals and simple to realize laboratory raise (Zhou et approach.,...
References: Appenroth, K-J., Krech, K., Keresztes, A., Fischer, W. They would., Koloczek, L., (2010). Effects of nickel for the chloroplasts with the duckweeds Spirodela polyrhiza and Lemna slight and their conceivable use in biomonitoring and phytoremediation. Chemosphere, 80: 216-223. Ater, M., AГЇt Ali, And., Kasmi, L., (2006). TolГ©rance et deposition du cuivre et du chrome pour deux espГЁces de lentilles d'eau: Lemna minor D. et Lemna gibba T. Revue des Sciences para l'Eau, 19 (1): 57-67. Bertrand, M., Poirier, I actually., (2005). Photosynthetic organisms and excess of metals. Photosynthetica, 43 (3): 345-353. Dewez, M., Geoffroy, L., Vernet, G., Popovic, Ur., (2005). Perseverance of photosynthetic and enzymatic Biomarkers tenderness used to assess toxic associated with copper and fludixonil in alga Scenedesmus obliquus. Aquat. Toxicol., 74: 150-159. Whilst gary, C., (1988). Prise en compte kklk diffГ©rentes options d'erreurs ain estimation entre ma prГ©cision dans le marche de la mesure des Г©changes de LASER en systГЁme ouvert. Photosynthetica, 22
(1): 58-69. Hattab, S., Dridi, B., Chouba, L., Bill Kheder, M., Bousetta, L., (2009). Photosynthesis and progress responses of pea pisum sativum D. under heavy metals tension. J. Presque. Sci., 21 years old: 1552-1556. Jain, S. K., Vasudevan, P., Jha, D. K., (1989). Removal of a lot of heavy metals from infected water by aquatic plants: Studies upon duckweed and water velvet. Biol. Waste materials, 28: 115-126. Kanoun-BoulГ©, M., Vicentea, T. A. N., Nabaisa, C., Prasad, Meters. N. Sixth is v., Freitas, F., (2009). Ecophysiological tolerance of duckweeds exposed to copper. Marine Toxicol., 91 (1): 1-9. Khellaf, D., and Zerdaoui, M., (2009a). Growth response of the duckweed L. minimal to weighty metals air pollution. Iran. T. Environ. Health Sci. Eng., 6 (3): 161-166. Khellaf, N., and Zerdaoui, Meters., (2009b). Phytoaccumulation of zinc by the aquatic plant Lemna gibba M. Bioresour. Technol., 100: 6137-6140. Megateli, H., Semsari, H., Couderchet, M., (2009). Toxicity and associated with heavy metals (cadmium, copper mineral and zinc) by Lemna gibba. Ecotoxicol. Environ. Saf. 72: 1774-1780. Miretzky, P., Saralegui, A., Cirelli, A. F., (2004). Aquatic macrophytes potential for the simultaneous associated with heavy alloys (Buenos Zones, Argentina). Chemosphere, 57: 997-1005. Movahedian, H., Bina, W., Asghari, G. H., (2005). Toxicity Evaluation of Sewage Treatment Plant Effluents Using Daphnia magna. Iran. M. Environ. Health Sci. Eng., 2 (2): 1-4. OECD, (2002). Guidelines for the testing of chemicals, Lemna sp. Growth Inhibition Test, Draft guideline 221, Paris, England Olette, R., Couderchet, Meters., Biagianti, T., Eullaffroy, S., (2008). Degree of toxicity and removal of pesticides by simply selected aquatic plants. Chemosphere, 70: 1414-1421. Papazoglou, At the. G., Karantounias, G. A., Vemmos, T. N., Bouranis, D. L., (2005). Photosynthesis and growth responses of Giant reed (Arundo donax L. ) to heavy metals Disc and Ni. Environ. Int., 31: 243-249. Prasad, M. N. Versus., Malek, P., Waloszek, A., Bojko, M., Strazalka, E., (2001). Physical responses of Lemna trisulca L. (duckweed) to cadmium and birdwatcher accumulation. Grow Sci., 161: 881-889. Sabreen, S., and Sugiyama, T., (2008). Trade-off between radium tolerance and relative progress rate in 10 turf species. Environ. Experimental Bot., 63: 327-332. Teisseire, They would., and Person, V., (2000). Copper activated changes in antioxidant enzymes actions in fronds of duckweed (Lemna minor). Plant Sci., 153: 65-72. Vinodhini, Ur., and Narayanan, M., (2009). The impact of toxic heavy metals on the haematological variables in common carp (cyprinus carpio L. ). Iran. T. Environ. Overall health. Sci. Eng., 6 (1): 23-28. Wedge, R. M., and Burris, J. At the., (1982). Associated with light and temperature about duckweed the natural photosynthesis. Aquat. Bot., 13: 133-140. Xia, J., and Tian, Q., (2009). Early stage toxicity of excess copper to photosystem II of chlorella pyrenoidosaвЂ“OJIP chlorophyll a fluorescence analysis. J. Environ. Sci., 21: 1569-1574. Zayed, A., Gowthaman, S., Terry, N., (1998). Phytoaccumulation of trace components by wetland plants: IDuckweed. J. Environ. Qual., twenty-seven: 715-721. Zhou, Q., Zhang, J., Fu, J., Shi, J., Jiang, G., (2008). Biomonitoring: An appealing tool pertaining to assessment of metal polluting of the environment in the aquatic ecosystem. Analytica chimica acta, 606: 135-150.
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